EP 0202940 B1 19920513 - USE AND PREPARATION OF A VISCOSIFIER AND COMPOSITIONS CONTAINING THE SAME
Title (en)
USE AND PREPARATION OF A VISCOSIFIER AND COMPOSITIONS CONTAINING THE SAME
Publication
Application
Priority
US 73820385 A 19850524
Abstract (en)
[origin: EP0202940A2] A composition of matter suitable for increasing the viscosity of liquids comprises tendrillar carbonaceous material (TCM) having a ultra low bulk density of less than about 01 g/cm<sup>3</sup> and comprises intertwined tendrils having a diameter (number average) of from about 0.05 to about 0.2 micron and a length (number average) to diameter (number average) ratio greater than about 10, the tendrils comprising carbon fibers and an iron metal component dispersed throughout the carbon fibers as nodules that are intimately associated with and at least partially bonded to the carbon fibers, the tendrillar carbonaceous material comprising from about 0.1 to about 5% by weight iron. The TCM can be used as a viscosifier and for suspending solids in such applications as drilling muds, lubricating oils and greases. The TCM can be prepared by disproportionating carbon monoxide in the presence of iron contained in a blend of (1) previously formed TCM and (2) iron containing particles.
IPC 1-7
C01B 31/02; C09K 7/00; C10M 113/00; C10M 125/00; C10M 171/00; D01F 9/12
IPC 8 full level
C01B 31/02 (2006.01); C09K 3/00 (2006.01); C09K 8/02 (2006.01); C09K 8/03 (2006.01); C10M 113/00 (2006.01); C10M 113/02 (2006.01); C10M 125/00 (2006.01); C10M 125/02 (2006.01); C10M 171/00 (2006.01); D01F 9/12 (2006.01); D01F 9/127 (2006.01); C10N 20/00 (2006.01); C10N 20/02 (2006.01); C10N 20/06 (2006.01); C10N 50/10 (2006.01)
CPC (source: EP KR US)
B82Y 30/00 (2013.01 - EP US); C09K 3/00 (2013.01 - KR); C09K 8/032 (2013.01 - EP US); C10M 113/02 (2013.01 - EP US); C10M 125/02 (2013.01 - EP US); C10M 171/00 (2013.01 - EP US); C10M 171/06 (2013.01 - EP US); D01F 9/127 (2013.01 - EP US); B01J 2208/00681 (2013.01 - EP US); C01P 2004/03 (2013.01 - EP US); C10M 2201/041 (2013.01 - EP US); C10N 2020/06 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0202940 A2 19861126; EP 0202940 A3 19890705; EP 0202940 B1 19920513; AT E76119 T1 19920515; AU 5729186 A 19861127; AU 593248 B2 19900208; BR 8602338 A 19870121; CA 1302029 C 19920602; DE 3685256 D1 19920617; JP H0257837 B2 19901206; JP S6230178 A 19870209; KR 860009111 A 19861220; KR 930009246 B1 19930924; US 4689161 A 19870825; ZA 863570 B 19870826
DOCDB simple family (application)
EP 86303893 A 19860522; AT 86303893 T 19860522; AU 5729186 A 19860509; BR 8602338 A 19860522; CA 509046 A 19860513; DE 3685256 T 19860522; JP 12003786 A 19860524; KR 860004036 A 19860523; US 73820385 A 19850524; ZA 863570 A 19860514